Book box



FIG. 1 is a front elevational view of the book box of the present invention;

FIG. 2 is a rear elevational view of the book box of FIG. 1;

FIG. 3 is a left side elevational view of the book box of FIG. 1;

FIG. 4 is a right side elevational view of the book box of FIG. 1;

FIG. 5 is a top plan view of the book box of FIG. 1, the bottom view being a mirror image thereof; and,

FIG. 6 is a top, right side perspective in an alternate position view of the book box of FIG. 1. 

The ornamental design for a book box, as shown and described. 